You will need a 700R4 for a 4X4 with the correct Output Shaft for your Transfer Case.
700R4's are not a great choice for a heavy vehicle unless it's upgraded with better parts, extra clutches, 2-4 Servo, Beast Sun Shell, Shift Kit etc..
You'll also need the TV Cable & Linkage.
Column shifter will need to be modified or changed if you want to be able to shift into 1st gear manually.